Kodi ma synchronous motor ndi chiyani? Zotsatira zakutaya kalunzanitsidwe ndi chiyani?

Kwa ma asynchronous motors, kutsetsereka ndikofunikira pakuyendetsa galimoto, ndiko kuti, kuthamanga kwa rotor nthawi zonse kumakhala kocheperako kuposa kuthamanga kwa maginito ozungulira. Kwa motor synchronous, maginito a stator ndi rotor nthawi zonse amayenda mofanana, ndiko kuti, kuthamanga kwa injini kumagwirizana ndi mphamvu ya maginito.

Kuchokera pakuwunika kwamapangidwe, mawonekedwe a stator a motor synchronous siwosiyana ndi makina asynchronous.Pamene mphamvu ya magawo atatu idutsa, mphamvu ya maginito yosinthasintha idzapangidwa; gawo lozungulira la injini lilinso ndi gawo la maginito la sinusoidally logawanika la DC chisangalalo, lomwe lingathenso kupangidwa ndi maginito okhazikika.

Pamene injini ikuyenda bwino, liwiro lozungulira la rotor magnetic field limagwirizana ndi kuthamanga kwa maginito a stator magnetic field, ndiko kuti, maginito a stator ndi rotor magnetic fields amakhazikika mumlengalenga, omwe ndi chikhalidwe chofanana cha synchronous. galimoto. Ziwirizo zikangosagwirizana, zimaganiziridwa kuti The motor yatha.

Kutenga njira yozungulira ya rotor ngati chiwongolero, pomwe maginito a rotor amatsogolera maginito a stator, zitha kumveka kuti maginito a rotor ndiwopambana, ndiye kuti, kutembenuka kwamphamvu pansi pakuchita kwamphamvu, injini yolumikizirana ndi dziko la jenereta; M'malo mwake, kayendedwe ka kayendedwe ka galimoto kamakhalabe, pamene mphamvu ya maginito ya rotor ikutsalira kumbuyo kwa maginito a stator, tikhoza kumvetsa kuti mphamvu ya maginito ya stator imakoka rotor kuti isunthe, ndipo galimotoyo ili mu galimoto. .Pakugwira ntchito kwa injini, pamene katundu wokokedwa ndi rotor ukuwonjezeka, kutsalira kwa maginito a rotor ndi mphamvu ya maginito ya stator kudzawonjezeka. Kukula kwa injini kumatha kuwonetsa mphamvu yamotoyo, ndiye kuti, pansi pa voliyumu yofanana ndi yomwe idavotera panopa, mphamvu yokulirapo, mphamvu yofananira nayo.

Kaya ndi gawo la mota kapena jenereta, pomwe mota ilibe katundu, mphamvu yongoyerekeza ndi ziro, ndiye kuti, magawo awiri a maginito amangochitika mwangozi, koma zenizeni ndikuti chifukwa cha kuwonongeka kwina kwa mota. , pakadali ngodya ya mphamvu pakati pa ziwirizi. Zilipo, zazing'ono zokha.

Pamene rotor ndi stator maginito minda si synchronized, mphamvu ngodya ya galimoto kusintha.Pamene rotor ikutsalira kumbuyo kwa maginito a stator, mphamvu ya maginito ya stator imapanga mphamvu yoyendetsa ku rotor; pamene mphamvu ya maginito ya rotor imatsogolera mphamvu ya maginito ya stator, mphamvu ya maginito ya stator imapanga kukana kwa rotor, kotero kuti pafupifupi torque ndi zero.Popeza rotor sikupeza torque ndi mphamvu, imayima pang'onopang'ono.

Pamene injini ya synchronous ikuyenda, mphamvu ya maginito ya stator imayendetsa maginito a rotor kuti azungulira.Pali torque yokhazikika pakati pa magawo awiri a maginito, ndipo liwiro lozungulira la awiriwa ndi lofanana.Liwiro la ziwirizi likapanda kufanana, torque ya synchronous kulibe, ndipo mota imayima pang'onopang'ono.Kuthamanga kwa rotor sikunagwirizane ndi mphamvu ya maginito ya stator, kuchititsa kuti torque ya synchronous iwonongeke ndipo rotor imayima pang'onopang'ono, yomwe imatchedwa "chochitika chakunja".Pamene chochitika chakunja chikuchitika, mphamvu ya stator ikukwera mofulumira, zomwe sizili bwino kwambiri. Mphamvu yamagetsi iyenera kudulidwa mwamsanga kuti injini isawonongeke.